We’re given a zipfile containing a Windows executable. An identification attempt (using CFF explorer) quickly reveals that it was packed using a simple executable compressor:
Signature: CExe v1.0a
Matches: 43
Another quick pCTF 2011 write-up. This is a windows Application made using .NET. Upon launching you get 3 sliders with a range of 0-255 and a button. Goal is to find the correct permutation for the 3 sliders. When you enter the wrong slider values you will get a nice failed message.
When decompiling the application using ILspy we find the following relevant code bits:
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